Computer simulation/model of how much carbon is released in the air for a certain amount of time with a certain speed. Use forward arrow to move and enter a number from 20mph- 100mph(20mph,30mph.40mph.50mph,60mph,70mph,80mph,90mph,100mph) Did you know that a car of 20mph would release less than a car going at 100mph for specific distances like 300 yards, 20mph would release more than 100mph.